48 lines
1.9 KiB
TypeScript
48 lines
1.9 KiB
TypeScript
//// [doubleMixinConditionalTypeBaseClassWorks.ts]
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type Constructor = new (...args: any[]) => {};
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const Mixin1 = <C extends Constructor>(Base: C) => class extends Base { private _fooPrivate: {}; }
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type FooConstructor = typeof Mixin1 extends (a: Constructor) => infer Cls ? Cls : never;
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const Mixin2 = <C extends FooConstructor>(Base: C) => class extends Base {};
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class C extends Mixin2(Mixin1(Object)) {}
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//// [doubleMixinConditionalTypeBaseClassWorks.js]
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var Mixin1 = function (Base) { return /** @class */ (function (_super) {
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__extends(class_1, _super);
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function class_1() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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return class_1;
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}(Base)); };
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var Mixin2 = function (Base) { return /** @class */ (function (_super) {
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__extends(class_2, _super);
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function class_2() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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return class_2;
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}(Base)); };
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var C = /** @class */ (function (_super) {
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__extends(C, _super);
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function C() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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return C;
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}(Mixin2(Mixin1(Object))));
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